What is Important for Tightening of Screw Joints?

This letter contains important aspects for tightening of screw joints as extension to typical books or articles. Fundamentals of screw joints are precondition for understanding. If used as a checklist, you are equipped with considerations for best boundary conditions of tightening.

Main points are:

• Transfer functions of tightening
• Tightening as base for entire life time of joint
• Preload deviation dependent on tightening process
• Extended tightening diagram with limits of joint
• Statistics of tightening
• Risks regarding tightening in practice

This letter contains beneficial answers to following questions:

• Are you aware, that tightening is the base for good working of screw joints in entire life cycle?
• Do you know, that tightenng can be structured with transfer-functions?
• Are you aware, that you have to specify a tightening process with more than just a torque to get reliability?
• Do you know, that reliability of tightening can be expressed with preload deviation dependent on tightening method, elastically and beyond?

You will find much more answers in the letter itself.